Adjustable circuit breaker

Abstract

The utility model belongs to the technical field of circuit breakers, and particularly relates to an adjustable circuit breaker which comprises an outer plate and an installation mechanism arranged above the outer plate, and the installation mechanism comprises a heat dissipation assembly and a fixing assembly. The heat dissipation assembly comprises a rear cover, a limiting plate, a second threaded hole, a cooling fin, a second lead screw, a protective cover, a ventilation net, a third lead screw and a third threaded hole, the rear cover is arranged on the outer surface of the outer plate, the limiting plate is arranged above the rear cover, the second threaded hole is formed in the outer surface of the limiting plate, and the cooling fin is arranged on the upper end face of the limiting plate. According to the utility model, the heat dissipation sheet is arranged above the rear cover, the heat dissipation sheet can help to dissipate excess heat, and the heat dissipation sheet is installed in the middle of the rear cover through the second screw rod, so that heat dissipation can be effectively carried out on the circuit breaker; therefore, stable operation of the circuit breaker is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to an adjustable circuit breaker. Background Art

[0002] A circuit breaker is a switching device that can close, carry and disconnect current under normal circuit conditions, and close, carry and disconnect current under abnormal circuit conditions within a specified time. The function of a circuit breaker is to cut off and connect load circuits, as well as cut off fault circuits to prevent accidents from expanding and ensure safe operation. In addition, circuit breakers also have overload, short circuit and undervoltage protection functions.

[0003] However, the existing circuit breaker generates heat during operation. If the heat is not dissipated in time, the circuit breaker will overheat, thereby affecting its normal operation. Therefore, an adjustable circuit breaker is proposed to address the above problem. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art and solve the problem that the circuit breaker generates heat during operation and if the heat is not dissipated in time, the circuit breaker will overheat, thereby affecting its normal operation, the utility model proposes an adjustable circuit breaker.

[0005] The technical solution adopted by the utility model to solve the technical problem is: the adjustable circuit breaker described in the utility model includes an outer plate and a mounting mechanism arranged above the outer plate, and the mounting mechanism includes a heat dissipation component and a fixing component;

[0006] The heat dissipation assembly includes a rear cover, a limit plate, a second threaded hole, a heat sink, a second screw rod, a protective cover, a ventilation net, a third screw rod and a third threaded hole. The outer surface of the outer plate is provided with a rear cover, a limit plate is provided above the rear cover, a second threaded hole is provided on the outer surface of the limit plate, a heat sink is provided on the upper end surface of the limit plate, a second screw rod is provided around the heat sink, a protective cover is provided above the heat sink, a ventilation net is installed on the upper end surface of the protective cover, a third screw rod is installed around the protective cover, and a third threaded hole is provided on the upper end surface of the rear cover;

[0007] The fixing assembly includes a rear seat, a slide rail, a rear cover, a slide groove, a socket, a plug and a spring. The rear end face of the outer panel is provided with a rear seat, the bottom of the rear seat is installed with a slide rail, the rear end face of the rear seat is provided with a rear cover, the bottom of the rear cover is provided with a slide groove, the side end face of the rear seat is provided with a socket, the side end face of the rear cover is provided with a plug, and the outer surface of the plug is provided with a spring.

[0008] The front end surface of the outer panel is provided with a knob, the front end surface of the outer panel is provided with a display light, the front end surface of the outer panel is provided with an adjustment rod, the front end surface of the outer panel is provided with a through hole, the middle part of the through hole is provided with a first screw rod, the front end surface of the rear seat is provided with a first threaded hole, and the side end surface of the rear cover is installed with a heat dissipation window.

[0009] Preferably, the heat sink is fastened to the limiting plate via the second screw rod and the second threaded hole, the lower end surface of the heat sink is tightly fitted to the upper end surface of the limiting plate, and the limiting plate and the rear cover are integrated.

[0010] Preferably, the protective cover is fastened to the rear cover via a third screw rod and a third threaded hole, and the inner margin of the protective cover is closely connected to the inner margin of the heat sink, and two groups of ventilation nets are symmetrically arranged along the protective cover.

[0011] Preferably, the slide rail forms a sliding structure with the rear cover through the slide groove, and the slide rail is fixedly connected to the rear seat.

[0012] Preferably, the spring is fixedly connected to the rear cover and the plug, and the rear cover forms a snap-fit ​​structure with the rear seat via the plug and the socket.

[0013] Preferably, the outer plate is fastened to the rear seat via a first screw rod and a first threaded hole, and four groups of the first screw rods are evenly arranged around the outer plate.

[0014] The utility model is beneficial in that:

[0015] 1. The utility model sets a heat sink above the rear cover, which can help dissipate excess heat, and installs the heat sink in the middle of the rear cover through the second screw rod, which can effectively dissipate heat for the circuit breaker, thereby ensuring the stable operation of the circuit breaker;

[0016] 2. The utility model has a protective cover installed at the outer end of the heat sink, and two sets of ventilation nets are arranged on the protective cover, which can not only protect the heat sink, but also play a good ventilation and heat dissipation effect, so as to achieve the effect of air circulation and improve the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the heat sink structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the connection structure between the outer panel and the rear seat of the utility model;

[0021] Figure 4 It is a schematic diagram of the rear cover and rear seat structure of the utility model.

[0022] In the figure: 1. outer panel; 2. knob; 3. display light; 4. adjustment rod; 5. through hole; 6. first screw rod; 7. back seat; 8. first threaded hole; 9. slide rail; 10. back cover; 11. heat dissipation window; 12. limit plate; 13. second threaded hole; 14. heat sink; 15. second screw rod; 16. protective cover; 17. ventilation net; 18. third screw rod; 19. third threaded hole; 20. slide groove; 21. socket; 22. plug; 23. spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1

[0025] See also Figure 1-4 As shown, an adjustable circuit breaker includes an outer plate 1 and a mounting mechanism arranged above the outer plate 1, wherein the mounting mechanism includes a heat dissipation component and a fixing component;

[0026] The heat dissipation assembly includes a rear cover 10, a limiting plate 12, a second threaded hole 13, a heat sink 14, a second screw 15, a protective cover 16, a ventilation net 17, a third screw 18 and a third threaded hole 19. The outer surface of the outer plate 1 is provided with the rear cover 10, the limiting plate 12 is provided above the rear cover 10, the outer surface of the limiting plate 12 is provided with a second threaded hole 13, the upper end surface of the limiting plate 12 is provided with a heat sink 14, the second screw 15 is provided around the heat sink 14, the protective cover 16 is provided above the heat sink 14, the upper end surface of the protective cover 16 is installed with a ventilation net 17, the third screw 18 is installed around the protective cover 16, and the upper end surface of the rear cover 10 is provided with a third threaded hole 19;

[0027] The fixing assembly includes a rear seat 7, a slide rail 9, a rear cover 10, a slide groove 20, a socket 21, a plug 22 and a spring 23. The rear end face of the outer panel 1 is provided with the rear seat 7, the slide rail 9 is installed at the bottom of the rear seat 7, the rear end face of the rear seat 7 is provided with the rear cover 10, the bottom of the rear cover 10 is provided with a slide groove 20, the side end face of the rear seat 7 is provided with a socket 21, the side end face of the rear cover 10 is provided with a plug 22, and the outer surface of the plug 22 is provided with a spring 23.

[0028] Furthermore, the heat sink 14 is fastened to the limit plate 12 through the second screw rod 15 and the second threaded hole 13, and the lower end surface of the heat sink 14 is tightly fitted with the upper end surface of the limit plate 12, and the limit plate 12 and the rear cover 10 are integrated into a structure. The heat sink 14 is arranged above the rear cover 10, and the heat sink 14 can help dissipate excess heat. The heat sink 14 is installed in the middle of the rear cover 10 through the second screw rod 15, which can effectively dissipate the heat of the circuit breaker, thereby ensuring the stable operation of the circuit breaker.

[0029] Furthermore, the protective cover 16 is fastened to the rear cover 10 through the third screw rod 18 and the third threaded hole 19, and the inner margin of the protective cover 16 is closely connected to the inner margin of the heat sink 14, and two groups of ventilation nets 17 are symmetrically arranged along the protective cover 16, and the protective cover 16 is installed at the outer end of the heat sink 14. Two groups of ventilation nets 17 are arranged on the protective cover 16. While protecting the heat sink 14, it can also play a good ventilation and heat dissipation effect, so as to achieve the effect of air circulation and improve the heat dissipation efficiency.

[0030] Furthermore, the slide rail 9 forms a sliding structure with the rear cover 10 through the slide groove 20, and the slide rail 9 is fixedly connected to the rear seat 7. The rear seat 7 is engaged inside the rear cover 10 by sliding. The sliding engagement connection between the slide rail 9 and the slide groove 20 can increase the connection between the rear seat 7 and the rear cover 10, and assist in the stability of the connection between the two.

[0031] Furthermore, the spring 23 is fixedly connected to the rear cover 10 and the plug 22, and the rear cover 10 forms a snap-fit ​​structure with the rear seat 7 through the plug 22 and the socket 21. After the rear seat 7 slides into the rear cover 10, by pulling the plug 22 and under the elastic action of the spring 23, the rear cover 10 and the rear seat 7 can be snap-fitted through the plug 22, thereby increasing the fixing effect, making the connection structure more stable and improving the stability of the assembly.

[0032] Embodiment 2

[0033] See also Figure 1 and Figure 3As shown, in comparison with Example 1, as another implementation of the utility model, the front end face of the outer panel 1 is provided with a knob 2, the front end face of the outer panel 1 is provided with a display light 3, the front end face of the outer panel 1 is provided with an adjusting rod 4, the front end face of the outer panel 1 is provided with a through hole 5, the middle part of the through hole 5 is provided with a first screw rod 6, the front end face of the rear seat 7 is provided with a first threaded hole 8, and the side end face of the rear cover 10 is installed with a heat dissipation window 11.

[0034] Furthermore, the outer panel 1 is fastened to the rear seat 7 through the first screw rod 6 and the first threaded hole 8, and four groups of the first screw rod 6 are evenly arranged around the outer panel 1. The outer panel 1 and the rear seat 7 are connected by the first screw rod 6, which can be easily installed and disassembled, making it convenient for the staff to carry out maintenance and repair, thereby increasing the service life of the circuit breaker.

[0035] Working principle. First of all, the adjustable circuit breaker means that the leakage protection time, overload protection current and short-circuit protection current of the circuit breaker can be adjusted to meet different usage requirements. By turning the knob 2 by hand, it is rotated to the corresponding scale position according to the required protection time, thereby forming an adjustable circuit breaker. A heat sink 14 is arranged above the rear cover 10. The heat sink 14 can help dissipate excess heat, and the heat sink 14 is installed in the middle of the rear cover 10 through the second screw rod 15. It can effectively dissipate the heat of the circuit breaker, thereby ensuring the stable operation of the circuit breaker, and a protective cover 16 is installed at the outer end of the heat sink 14. Two sets of ventilation nets 17 are arranged on the protective cover 16. While protecting the heat sink 14, it can also play a good ventilation and heat dissipation effect, so as to achieve the effect of air circulation and improve the heat dissipation efficiency.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An adjustable circuit breaker, comprising an outer plate (1) and a mounting mechanism arranged above the outer plate (1), characterized in that: The mounting mechanism includes a heat dissipation component and a fixing component; The heat dissipation assembly comprises a rear cover (10), a limiting plate (12), a second threaded hole (13), a heat sink (14), a second screw rod (15), a protective cover (16), a ventilation net (17), a third screw rod (18) and a third threaded hole (19); the outer surface of the outer plate (1) is provided with the rear cover (10); a limiting plate (12) is provided above the rear cover (10); the outer surface of the limiting plate (12) is provided with a second threaded hole (13); the upper end surface of the limiting plate (12) is provided with a heat sink (14); the second screw rod (15) is provided around the heat sink (14); a protective cover (16) is provided above the heat sink (14); the upper end surface of the protective cover (16) is installed with a ventilation net (17); the third screw rod (18) is installed around the protective cover (16); and the upper end surface of the rear cover (10) is provided with a third threaded hole (19); The fixing assembly comprises a rear seat (7), a slide rail (9), a rear cover (10), a slide groove (20), a socket (21), a plug (22) and a spring (23); the rear end surface of the outer panel (1) is provided with the rear seat (7); the bottom of the rear seat (7) is provided with the slide rail (9); the rear end surface of the rear seat (7) is provided with the rear cover (10); the bottom of the rear cover (10) is provided with a slide groove (20); the side end surface of the rear seat (7) is provided with a socket (21); the side end surface of the rear cover (10) is provided with a plug (22); and the outer surface of the plug (22) is provided with a spring (23).

2. An adjustable circuit breaker according to claim 1, characterized in that: The front end surface of the outer panel (1) is provided with a knob (2), the front end surface of the outer panel (1) is provided with a display light (3), the front end surface of the outer panel (1) is provided with an adjustment rod (4), the front end surface of the outer panel (1) is provided with a through hole (5), the middle part of the through hole (5) is provided with a first screw rod (6), the front end surface of the rear seat (7) is provided with a first threaded hole (8), and the side end surface of the rear cover (10) is installed with a heat dissipation window (11).

3. The adjustable circuit breaker according to claim 1, characterized in that: The heat sink (14) is fastened to the limiting plate (12) via the second screw rod (15) and the second threaded hole (13), the lower end surface of the heat sink (14) is tightly fitted to the upper end surface of the limiting plate (12), and the limiting plate (12) and the rear cover (10) are integrated.

4. The adjustable circuit breaker according to claim 1, characterized in that: The protective cover (16) is fastened to the rear cover (10) via a third screw rod (18) and a third threaded hole (19), and the inner margin of the protective cover (16) is closely connected to the inner margin of the heat sink (14), and two groups of ventilation nets (17) are symmetrically arranged along the protective cover (16).

5. The adjustable circuit breaker according to claim 1, characterized in that: The slide rail (9) forms a sliding structure with the rear cover (10) through the slide groove (20), and the slide rail (9) is fixedly connected to the rear seat (7).

6. An adjustable circuit breaker according to claim 2, characterized in that: The spring (23) is fixedly connected to the rear cover (10) and the plug (22), and the rear cover (10) forms a snap-fit ​​structure with the rear seat (7) via the plug (22) and the insertion hole (21).

7. An adjustable circuit breaker according to claim 2, characterized in that: The outer plate (1) is fastened to the rear seat (7) via a first screw rod (6) and a first threaded hole (8), and four groups of first screw rods (6) are evenly arranged around the outer plate (1).

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